The advance search control with AbleCommerce 7 contains both the input form and results grid. There is no way to put the input form page on some different page or location and the results grid on some different. The following attachments contains these both functionalities as different controls. Extract the attachment and install the files in very same order. Now use the NewAdvancedSearchPage control to show input form for example as below
When you try advance search using this newly added input form it will redirect you to AdvancedSearch_NewGreen.aspx page which contains the result gird for search results.